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EDEXCEL 2023 papers AND markschemes
...............EASE YOUR REVISION...........................
edexcel june 2023
2
23
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20
2
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For resources, notes, easier revision
20
email
2
20
, EDEXCEL A LEVEL JUNE 2023
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Monday 15 May 2023
Morning (Time: 1 hour 30 minutes) Paper
reference 8BI0/01
Biology B
Advanced Subsidiary
PAPER 1: Core Cellular Biology and Microbiology
You must have: Total Marks
Scientific calculator, HB pencil, ruler
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Instructure
question(s) marked with an asterisk (*), marks will be awarded for your ability to
your answer logically showing how the points that you make are related
or follow on from each other where appropriate.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P71924A
©2023 Pearson Education Ltd.
N:1/1/1/1/1/1/
*P71924A0128*
TYRIONPAPERS.COM
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 Down’s syndrome is a genetic condition.
(a) Which row in the table describes the cause of Down’s syndrome?
(1)
Type of mutation Result of non‑disjunction
A chromosome monosomy
B chromosome polysomy
C gene monosomy
D gene polysomy
(b) The graph shows the effect of the age of the mother and the order in which
babies are born in a family (birth order) on the incidence of Down’s syndrome.
1000
800
Incidence of 600
Down’s syndrome 40+
per 100 000 live 35–39
400 30–34
births
Age group of
25–29
200 mother
20–24
0 <20
1 2 3 4 5
Birth order
2
*P71924A0228*
EDEXCEL 2023 papers AND markschemes
...............EASE YOUR REVISION...........................
edexcel june 2023
2
23
OFF THIS PAGESTRIP OFF THIS PAGE
20
2
23
For resources, notes, easier revision
20
2
20
, EDEXCEL A LEVEL JUNE 2023
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Monday 15 May 2023
Morning (Time: 1 hour 30 minutes) Paper
reference 8BI0/01
Biology B
Advanced Subsidiary
PAPER 1: Core Cellular Biology and Microbiology
You must have: Total Marks
Scientific calculator, HB pencil, ruler
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Instructure
question(s) marked with an asterisk (*), marks will be awarded for your ability to
your answer logically showing how the points that you make are related
or follow on from each other where appropriate.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P71924A
©2023 Pearson Education Ltd.
N:1/1/1/1/1/1/
*P71924A0128*
TYRIONPAPERS.COM
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 Down’s syndrome is a genetic condition.
(a) Which row in the table describes the cause of Down’s syndrome?
(1)
Type of mutation Result of non‑disjunction
A chromosome monosomy
B chromosome polysomy
C gene monosomy
D gene polysomy
(b) The graph shows the effect of the age of the mother and the order in which
babies are born in a family (birth order) on the incidence of Down’s syndrome.
1000
800
Incidence of 600
Down’s syndrome 40+
per 100 000 live 35–39
400 30–34
births
Age group of
25–29
200 mother
20–24
0 <20
1 2 3 4 5
Birth order
2
*P71924A0228*
